His Holiness for Francis sends the wrong message. If one is honest with themselves they would call him "Pope" Francis.
I know it seems a bit eccentric to use honorific titles in the modern democratic age that we live in, but it was actually quite common in the old days, especially before the French Revolution. I use honorific titles as a way to show respect for holy offices, even though the people who hold them may be lacking in virtue.
When God the Father spoke to St. Catherine of Sienna about the clergy, He told her, "[It] is my intention that they be held in due reverence, not for what they are in themselves, but for my sake, because of the authority I have given them. Therefore the virtuous must not lessen their reverence, even should these ministers fall short in virtue."